PUYALLUP 2 W EXP STN, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(456803) PUYALLUP 2 W EXP STN
From Year=1914 To Year=1995
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	0	1	11	66	160	281	273	136	27	1	0	957
57	0	0	0	5	40	111	220	212	92	13	0	0	694
60	0	0	0	2	17	56	135	128	42	4	0	0	384
65	0	0	0	0	2	13	40	34	6	0	0	0	96
70	0	0	0	0	0	2	7	5	0	0	0	0	15

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu